id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc,focuses
1626,user_nicename should be unique ,claudem,pishmishy,"When registering new users, WP should check that the sanitized version of the username (user_nicename) is unique in the DB. If this check is not made, we can end up with two different users sharing the same user_nicename.
This is a problem if the permalinks are built with author names (/%author%/...). There is potential for ambiguity in this situation if two username result in the same niice name.
Example: ""user-1"" and ""user 1"" both get the same nice name: ""user-1"".
I recommend to make the user_nicename column unique, like user_login.
",defect (bug),closed,normal,2.8,General,1.5.1.2,normal,fixed,has-patch tested dev-feedback,,